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公开(公告)号:US20070120724A1
公开(公告)日:2007-05-31
申请号:US11602355
申请日:2006-11-21
IPC分类号: H03M1/12
CPC分类号: H03M1/0626 , H03M1/1215
摘要: In a time-interleaved AD converter which combines together low-speed high-resolution AD converters for effective high speed operation, various deterioration factors possessed by each of the converters, including DC offset, conversion gain error, sampling timing error, and a frequency characteristic, need to be compensated. The compensation is performed through nonlinear filter operation in which a constant term is added to linear filter operation. A high-speed low-resolution AD converter is separately used, and through adaptive signal processing in which an output signal thereof is defined as an instruction signal, a compensation coefficient is calculated. In this condition, the compensation can be performed without the influence of quantization noise attributable to the high-speed low-resolution AD converter.
摘要翻译: 在将低速高分辨率AD转换器组合在一起的有效高速运行的时间交织的AD转换器中,每个转换器所具有的各种劣化因素包括DC偏移,转换增益误差,采样定时误差和频率特性 ,需要补偿。 通过非线性滤波器操作进行补偿,其中将常数项添加到线性滤波器操作。 单独使用高速低分辨率AD转换器,并且通过将其输出信号定义为指令信号的自适应信号处理,计算补偿系数。 在这种情况下,可以在不受归因于高速低分辨率AD转换器的量化噪声的影响的情况下进行补偿。
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公开(公告)号:US07352316B2
公开(公告)日:2008-04-01
申请号:US11602355
申请日:2006-11-21
IPC分类号: H03M1/12
CPC分类号: H03M1/0626 , H03M1/1215
摘要: In a time-interleaved AD converter which combines together low-speed high-resolution AD converters for effective high speed operation, various deterioration factors possessed by each of the converters, including DC offset, conversion gain error, sampling timing error, and a frequency characteristic, need to be compensated. The compensation is performed through nonlinear filter operation in which a constant term is added to linear filter operation. A high-speed low-resolution AD converter is separately used, and through adaptive signal processing in which an output signal thereof is defined as an instruction signal, a compensation coefficient is calculated. In this condition, the compensation can be performed without the influence of quantization noise attributable to the high-speed low-resolution AD converter.
摘要翻译: 在将低速高分辨率AD转换器组合在一起的有效高速运行的时间交织的AD转换器中,每个转换器所具有的各种劣化因素包括DC偏移,转换增益误差,采样定时误差和频率特性 ,需要补偿。 通过非线性滤波器操作进行补偿,其中将常数项添加到线性滤波器操作。 单独使用高速低分辨率AD转换器,并且通过将其输出信号定义为指令信号的自适应信号处理,计算补偿系数。 在这种情况下,可以在不受归因于高速低分辨率AD转换器的量化噪声的影响的情况下进行补偿。
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公开(公告)号:US09186751B2
公开(公告)日:2015-11-17
申请号:US13529793
申请日:2012-06-21
申请人: Itaru Chida , Keiichi Hirota , Hidekazu Sasaki , Takuya Uehara , Tomoki Suetake , Hiroshi Nomura
发明人: Itaru Chida , Keiichi Hirota , Hidekazu Sasaki , Takuya Uehara , Tomoki Suetake , Hiroshi Nomura
CPC分类号: B23K26/123 , B23K26/106 , B23K26/126 , B23K26/142 , B23K26/146 , B23K26/1476
摘要: A laser irradiation apparatus of the embodiment includes: a laser light transmission mechanism to guide laser light from a laser light source and emit the laser light from a laser light emission part; a condensing mechanism to condense the laser light; a pipe state casing to house and hold the condensing mechanism inside thereof and have an opening part to irradiate the laser light; a fluid supply mechanism to supply a fluid into the casing to emit the fluid from the opening part; a positioning mechanism provided at the casing to keep a distance from the condensing mechanism to the processing object constant by being brought into contact with the processing object; and a fluid guide mechanism to guide the fluid emitted from the opening part to flow between the casing and the processing object along an axial direction of the casing.
摘要翻译: 本实施方式的激光照射装置具备:激光传输机构,其从激光源引导激光,从激光发射部射出激光; 用于冷凝激光的冷凝机构; 管状壳体,用于将冷凝机构容纳并保持在其内部,并具有照射激光的开口部; 流体供应机构,用于将流体供应到所述壳体中以从所述开口部分排出流体; 定位机构,其设置在所述壳体处,以通过与所述处理对象接触而保持与所述冷凝机构到所述处理对象的距离恒定; 以及流体引导机构,其引导从所述开口部排出的流体沿着所述壳体的轴向在所述壳体与所述处理对象物之间流动。
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公开(公告)号:US20120325790A1
公开(公告)日:2012-12-27
申请号:US13529793
申请日:2012-06-21
申请人: Itaru CHIDA , Keiichi Hirota , Hidekazu Sasaki , Takuya Uehara , Tomoki Suetake , Hiroshi Nomura
发明人: Itaru CHIDA , Keiichi Hirota , Hidekazu Sasaki , Takuya Uehara , Tomoki Suetake , Hiroshi Nomura
IPC分类号: B23K26/12
CPC分类号: B23K26/123 , B23K26/106 , B23K26/126 , B23K26/142 , B23K26/146 , B23K26/1476
摘要: A laser irradiation apparatus of the embodiment includes: a laser light transmission mechanism to guide laser light from a laser light source and emit the laser light from a laser light emission part; a condensing mechanism to condense the laser light; a pipe state casing to house and hold the condensing mechanism inside thereof and have an opening part to irradiate the laser light; a fluid supply mechanism to supply a fluid into the casing to emit the fluid from the opening part; a positioning mechanism provided at the casing to keep a distance from the condensing mechanism to the processing object constant by being brought into contact with the processing object; and a fluid guide mechanism to guide the fluid emitted from the opening part to flow between the casing and the processing object along an axial direction of the casing.
摘要翻译: 本实施方式的激光照射装置具备:激光传输机构,其从激光源引导激光,从激光发射部射出激光; 用于冷凝激光的冷凝机构; 管状壳体,用于将冷凝机构容纳并保持在其内部,并具有照射激光的开口部; 流体供应机构,用于将流体供应到所述壳体中以从所述开口部分排出流体; 定位机构,其设置在所述壳体处,以通过与所述处理对象接触而保持与所述冷凝机构到所述处理对象的距离恒定; 以及流体引导机构,其引导从所述开口部排出的流体沿着所述壳体的轴向在所述壳体与所述处理对象物之间流动。
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